“#1. The 50/1.8 II has much more DOF than the other two lenses at the same aperture. This probably helps with its reputation as being very sharp for its size and cost. Overall it held up VERY well compared to its more expensive brethren.

#2. Because of the vaguaries of AF at low apertures I have to call the crop comparison close to a draw. What is most noticeable to me is the much greater contrast on the f/1.0L. Also notice how much better it handled the hot area near the letters “TE” in “INTERCOM”

#3. The bokeh comparison surprised me, as the cheapest lens had the roundest highlights.

Sheesh! how can you compare bokeh with all the lenses set to 1.8. This gives the advantage to the 1.8 as it does not have any blades in the picture. Do the bokeh test at f2.8 or f4 and the 50mm1.8 will start to look like crap compared to the others.